Home / 103,438.30-155,200.65-33,339.10

Finding the Fourth Proportional to 103,438.30, 155,200.65 and 33,339.10

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Solution

The fourth proportional to 103,438.30, 155,200.65 and 33,339.10 is: 50,022.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,438.30 : 155,200.65 = 33,339.10 : x
  2. Step 2: Convert to fraction form
    103,438.30/155,200.65 = 33,339.10/x
  3. Step 3: Cross multiply
    103,438.30x = 155,200.65 × 33,339.10
  4. Step 4: Simplify right side
    103,438.30x = 5,174,249,990.42
  5. Step 5: Solve for x
    x = 5,174,249,990.42/103,438.30
  6. Step 6: Final answer
    x = 50,022.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.